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-rw-r--r--lib/kernel/src/gen_tcp.erl120
1 files changed, 97 insertions, 23 deletions
diff --git a/lib/kernel/src/gen_tcp.erl b/lib/kernel/src/gen_tcp.erl
index bee61ca84a..8ab18c01b4 100644
--- a/lib/kernel/src/gen_tcp.erl
+++ b/lib/kernel/src/gen_tcp.erl
@@ -28,34 +28,108 @@
-include("inet_int.hrl").
--type hostname() :: inet:hostname().
--type ip_address() :: inet:ip_address().
--type port_number() :: 0..65535.
--type posix() :: inet:posix().
+-type option() ::
+ {active, true | false | once} |
+ {bit8, clear | set | on | off} |
+ {buffer, non_neg_integer()} |
+ {delay_send, boolean()} |
+ {deliver, port | term} |
+ {dontroute, boolean()} |
+ {exit_on_close, boolean()} |
+ {header, non_neg_integer()} |
+ {high_watermark, non_neg_integer()} |
+ {keepalive, boolean()} |
+ {linger, {boolean(), non_neg_integer()}} |
+ {low_watermark, non_neg_integer()} |
+ {mode, list | binary} | list | binary |
+ {nodelay, boolean()} |
+ {packet,
+ 0 | 1 | 2 | 4 | raw | sunrm | asn1 |
+ cdr | fcgi | line | tpkt | http | httph | http_bin | httph_bin } |
+ {packet_size, non_neg_integer()} |
+ {priority, non_neg_integer()} |
+ {raw,
+ Protocol :: non_neg_integer(),
+ OptionNum :: non_neg_integer(),
+ ValueBin :: binary()} |
+ {recbuf, non_neg_integer()} |
+ {reuseaddr, boolean()} |
+ {send_timeout, non_neg_integer() | infinity} |
+ {send_timeout_close, boolean()} |
+ {sndbuf, non_neg_integer()} |
+ {tos, non_neg_integer()}.
+-type option_name() ::
+ active |
+ bit8 |
+ buffer |
+ delay_send |
+ deliver |
+ dontroute |
+ exit_on_close |
+ header |
+ high_watermark |
+ keepalive |
+ linger |
+ low_watermark |
+ mode |
+ nodelay |
+ packet |
+ packet_size |
+ priority |
+ {raw,
+ Protocol :: non_neg_integer(),
+ OptionNum :: non_neg_integer(),
+ ValueSpec :: (ValueSize :: non_neg_integer()) |
+ (ValueBin :: binary())} |
+ recbuf |
+ reuseaddr |
+ send_timeout |
+ send_timeout_close |
+ sndbuf |
+ tos.
+-type connect_option() ::
+ {ip, inet:ip_address()} |
+ {fd, Fd :: non_neg_integer()} |
+ {ifaddr, inet:ip_address()} |
+ inet:address_family() |
+ {port, inet:port_number()} |
+ {tcp_module, module()} |
+ option().
+-type listen_option() ::
+ {ip, inet:ip_address()} |
+ {fd, Fd :: non_neg_integer()} |
+ {ifaddr, inet:ip_address()} |
+ inet:address_family() |
+ {port, inet:port_number()} |
+ {backlog, B :: non_neg_integer()} |
+ {tcp_module, module()} |
+ option().
-type socket() :: port().
+-export_type([option/0, option_name/0, connect_option/0, listen_option/0]).
+
%%
%% Connect a socket
%%
-spec connect(Address, Port, Options) -> {ok, Socket} | {error, Reason} when
- Address :: ip_address() | hostname(),
- Port :: port_number(),
- Options :: [Opt :: term()],
+ Address :: inet:ip_address() | inet:hostname(),
+ Port :: inet:port_number(),
+ Options :: [connect_option()],
Socket :: socket(),
- Reason :: posix().
+ Reason :: inet:posix().
connect(Address, Port, Opts) ->
connect(Address,Port,Opts,infinity).
-spec connect(Address, Port, Options, Timeout) ->
{ok, Socket} | {error, Reason} when
- Address :: ip_address() | hostname(),
- Port :: port_number(),
- Options :: [Opt :: term()],
+ Address :: inet:ip_address() | inet:hostname(),
+ Port :: inet:port_number(),
+ Options :: [connect_option()],
Timeout :: timeout(),
Socket :: socket(),
- Reason :: posix().
+ Reason :: inet:posix().
connect(Address, Port, Opts, Time) ->
Timer = inet:start_timer(Time),
@@ -97,10 +171,10 @@ try_connect([], _Port, _Opts, _Timer, _Mod, Err) ->
%%
-spec listen(Port, Options) -> {ok, ListenSocket} | {error, Reason} when
- Port :: port_number(),
- Options :: [Opt :: term()],
+ Port :: inet:port_number(),
+ Options :: [listen_option()],
ListenSocket :: socket(),
- Reason :: posix().
+ Reason :: inet:posix().
listen(Port, Opts) ->
Mod = mod(Opts, undefined),
@@ -119,7 +193,7 @@ listen(Port, Opts) ->
-spec accept(ListenSocket) -> {ok, Socket} | {error, Reason} when
ListenSocket :: socket(),
Socket :: socket(),
- Reason :: closed | timeout | posix().
+ Reason :: closed | timeout | inet:posix().
accept(S) ->
case inet_db:lookup_socket(S) of
@@ -133,7 +207,7 @@ accept(S) ->
ListenSocket :: socket(),
Timeout :: timeout(),
Socket :: socket(),
- Reason :: closed | timeout | posix().
+ Reason :: closed | timeout | inet:posix().
accept(S, Time) when is_port(S) ->
case inet_db:lookup_socket(S) of
@@ -150,7 +224,7 @@ accept(S, Time) when is_port(S) ->
-spec shutdown(Socket, How) -> ok | {error, Reason} when
Socket :: socket(),
How :: read | write | read_write,
- Reason :: posix().
+ Reason :: inet:posix().
shutdown(S, How) when is_port(S) ->
case inet_db:lookup_socket(S) of
@@ -176,8 +250,8 @@ close(S) ->
-spec send(Socket, Packet) -> ok | {error, Reason} when
Socket :: socket(),
- Packet :: string() | binary(),
- Reason :: posix().
+ Packet :: iodata(),
+ Reason :: inet:posix().
send(S, Packet) when is_port(S) ->
case inet_db:lookup_socket(S) of
@@ -195,7 +269,7 @@ send(S, Packet) when is_port(S) ->
Socket :: socket(),
Length :: non_neg_integer(),
Packet :: string() | binary() | HttpPacket,
- Reason :: closed | posix(),
+ Reason :: closed | inet:posix(),
HttpPacket :: term().
recv(S, Length) when is_port(S) ->
@@ -211,7 +285,7 @@ recv(S, Length) when is_port(S) ->
Length :: non_neg_integer(),
Timeout :: timeout(),
Packet :: string() | binary() | HttpPacket,
- Reason :: closed | posix(),
+ Reason :: closed | inet:posix(),
HttpPacket :: term().
recv(S, Length, Time) when is_port(S) ->
@@ -237,7 +311,7 @@ unrecv(S, Data) when is_port(S) ->
-spec controlling_process(Socket, Pid) -> ok | {error, Reason} when
Socket :: socket(),
Pid :: pid(),
- Reason :: closed | not_owner | posix().
+ Reason :: closed | not_owner | inet:posix().
controlling_process(S, NewOwner) ->
case inet_db:lookup_socket(S) of